ALUMINUM METAL-CORED WELD WIRE

摘要

PURPOSE: Provided is a metal-cored aluminum welding wire which yields a high quality weld bead when used in welding components of aluminum articles. CONSTITUTION: An aluminum metal-cored weld wire for producing aluminum weld deposits, the weld wire comprises a sheath and a core, the sheath being aluminum or aluminum alloy and the core containing a composition which includes metal or metal alloy powders. The method for manufacturing such an aluminum metal-cored wire comprises the steps of depositing a core composition onto a strip of aluminum; forming the strip of aluminum into a tube which contains the core composition; applying an inorganic lubricant to the surface of the tube; and drawing the tube through a plurality of reducing dies. Preferably the lubricant is molybdenum disulfide.